TCrossSpectrumAnalyzer Members

The following tables list the members exposed by TCrossSpectrumAnalyzer.

	Name	Description
	OnAfterAverageEvent	Event triggered just after the average has been applied.
	OnAfterComplexSpectrumEvent	Event triggered just after complex spectrum has been computed, but before averaging in the complex domain.
	OnAfterUpdateEvent	The event is triggered after the call to the Update method.
	OnBandsUpdateEvent	If assigned, this event will be called instead of a call to Bands.Update method.
	OnBeforeAverageEvent	Event triggered just before the average is applied.
	OnBeforeSpectrumTypeEvent	Event triggered just before spectrum type is aplied, but after averaging in the complex domain.
	OnBeforeUpdateEvent	The event is triggered just before the call to the Update method.
	OnDisplayUpdateEvent	The event is triggered after the OnAfterUpdate event. Use this event to update any associated charts or graphs or result tables.
	OnGetInputEvent	If the Input property is not assigned, the component will call OnGetInput.
	OnGetInputSpectrumEvent	Event returning the custom computed frequency spectrum to be used for computation of the input spectrum.
	OnGetOutputSpectrumEvent	Assign the event returning the custom computed frequency spectrum to be used for computation of the output spectrum.
	OnNotifyUpdateEvent	The event is called after a call to InternalUpdate, OnAfterUpdate and OnDisplayUpdate from within the Update method.
	OnParameterUpdateEvent	The event is triggered when ParamUpdate method is called. The ParamUpdate method is usually called by component editors when a value was changed by the user and the editor was "Live".
	OnPeaksUpdateEvent	If assigned, this event will be called instead of a call to Peaks.Update method.
	OnUpdateSpectrumEvent	This event is called from the UpdateSpectrum routine. The event is called after the spectrum data is updated and before the chart is updated.

Public Methods

	Name	Description
	Add	Add amplitude and phase of the ASpectrum to the current spectrum.
	AmpltEst	This is the overview for the AmpltEst method overload.
	AmpltEst	This is the overview for the AmpltEst method overload.
	AmpltLogEst	Converts the amplitude of the frequency spectrum at Freq frequency to dB according to the value of the Peaks property.
	AmpltSpectrum	Compute amplitude spectrum from X.
	Assign	This is Assign, a member of class TAnalysis.
	BandFlip	Flip the frequency spectrum on the frequency axis.
	ComplexEst	This is the overview for the ComplexEst method overload.
	ComputeSpectrum	Compute the frequency spectrum where the Num is the numerator and Den is the denominator of the transfer function.
	ConvergeToMaximum	Searches for the closes maximum of the amplitude spectrum. Returns the frequency as the result.
	Copy	Copy ASpectrum to the calling spectrum.
	Destroy	This is Destroy, a member of class TCrossSpectrumAnalyzer.
	DetectChannelCount	This is DetectChannelCount, a member of class TAnalysis.
	Differentiate	Differentiate the signal in the frequency domain.
	Divide	Divide the calling the spectrum with ASpectrum.
	EditorClass	This is EditorClass, a member of class TCrossSpectrumAnalyzer.
	FilterPeak	Filter the peak at Marks position Index from the signal and recalculate the spectrum.
	FilterPeak	Filter the peak defined with a TMarkRecord record stored at position Index within Marks list from Input.Data.
	InputsDirty	If all Inputs[i] are dirty the function returns true.
	Integrate	Integrate the signal in the frequency domain.
	IntegrateSpectrum	This is IntegrateSpectrum, a member of class TCustomSpectrumAnalyzer.
	InternalPull	When called, the method will pass Update requests recursively to all connected objects.
	Invalidate	Notifies all connected components that this component has fresh data.
	LoadFromStream	This is LoadFromStream, a member of class TSpectrumAnalyzer.
	LogAmplt	Compute the logarithm of the amplitude spectrum and convert to dB.
	MarksToStrings	Convert marks to strings.
	MinMax	Calls MinMaxAmplt and MinMaxPhase.
	MinMaxAmplt	Find minimum and maximum value of the Amplt spectrum.
	MinMaxPhase	Find minimum and maximum value of the Phase spectrum.
	Mul	Multiply the calling the spectrum with ASpectrum.
	NF	Calculates the average of the noise.
	ParamUpdate	The method can be assigned to some other component even handler, as a notification that a parameter has changed and that Self should consider a recalculation.
	PeakApproximate	Return the peak closest to the Freq frequency.
	PeakApproximate	Find the peak nearest to the Freq frequency and return the frequenyc of the newly found peak.
	PhaseEst	Returns the phase of the frequency spectrum at Freq frequency according to the value of the Peaks property.
	PhaseEst	This is the overview for the PhaseEst method overload.
	PhaseSpectrum	Compute phase spectrum from X.
	PipeReset	Recursively processes all connected components backward and calls Reset method.
	PowerSpectrum	Compute power spectrum from X.
	Process	Compute the frequency spectrum where the SrcNum is the numerator and SrcDen is the denominator of the transfer function.
	Pull	Request recalculation of the entire chain of all connected components.
	PullUntilEnd	Calls Pull until pipeEnd is returned.
	Reset	This is Reset, a member of class TAnalysis.
	ResetAveraging	Reset the frequency spectrum averaging.
	RMS	Returns the RMS of the spectrum.
	RMSSpectrum	Compute RMS spectrum from X.
	SaveToStream	This is SaveToStream, a member of class TSpectrumAnalyzer.
	Scale	Scale the calling spectrum with Factor.
	SetZero	Initialize spectrum to zero.
	SFDR	Spurious-free-dynamic-range computes the ratio of the largest marked peak towards the second largest.
	SINAD	Signal-to-noise-and-distortion calculates the the ratio of the maximum mark towards the rest (noise).
	Size	Assign Length, Complex and SamplingFrequency properties.
	SNR	Calculates the signal-to-noise ratio.
	Spectrum	Compute the spectrum from Input.Data according to the state of the component and place the result in Dst.
	Sqr	Square the Amplt and Phase of the ASpectrum and copy it to self.
	Subtract	Subtract ASpectrum from the calling spectrum.
	TCrossSpectrumAnalyzer	This is the overview for the TCrossSpectrumAnalyzer constructor overload.
	THD	Returns the ratio of RMS of the marked peaks, excluding the first, towards the first marked peak and returns the result in [%].
	THDN	The total-harmonic-distortion-and-noise computes the sum of sqares of the rest towards the maximum marked peak.
	TSpectrum	This is the overview for the TSpectrum constructor overload.
	TSpectrumAnalyzer	This is the overview for the TSpectrumAnalyzer constructor overload.
	Update	The method is overriden to provide support for the CrossAnalyzer.Recursive property.
	UpdateLogarithmic	Call the method after changing the Logarithmic property.
	UpdateNotify	Call this method only, if SuspendNotifyUpdate is True.
	UpdateSpectrum	Copy the spectrum specified by CrossAnalyzer.Transform property to Self.Amplt. and also performs peak and frequency band analysis, if specified.
	UpdateSpectrumStats	If Stats.Recursive was False, calling this method will compute the averaged spectrum and associated statistics.
	ValuesToStrings	Convert values to strings.

Public Properties

	Name	Description
	Active	Set active to false to suppress the propagation of the Pull request and the subsequent call to the Update method.
	ActualZeroPadding	Ready only. Returns the ratio between the original signal length and the length of the analyzed signal padded with zeros.
	Amplt	Stores the amplitude of the spectrum.
	ArOrder	Defines the order for the autogressive spectral estimators.
	Averages	Used to store the number of averages made.
	Bands	Holds the parameters for the frequency bands.
	Bandwidth	Returns the bandwidth of the spectrum in [Hz].
	BandwidthH	Returns the upper bandwidth edge of the signal.
	BandwidthL	Returns the lower bandwidth edge of the signal.
	Complex	Set this property to true, to request computation using complex numbers.
	ComplexSpectrum	This property returns a pointer to the scaled averaged complex cross spectrum.
	ConjExtend	If True, the conjugate symmetric part of the frequency spectrum is to be computed.
	ConjExtend	If True, the conjugate symmetric part of the frequency spectrum is to be computed.
	ConjFlip	If True, the conjugate symmetric part of the frequency spectrum will be placed in 0.5..1.0 Fs (as returned by the FFT), and not between -0.5..0.0 Fs.
	ConjFlip	If True, the conjugate symmetric part of the frequency spectrum will be placed in 0.5..1.0 Fs (as returned by the FFT), and not between -0.5..0.0 Fs.
	Continuous	If True, the component will pass on the udpate request to the connected component.
	CrossAnalyzer	Holder for all the storage and settings required by the cross spectral analysis.
	CrossSpectral	If True, calculate the cross spectrum and not the transfer function.
	CZT	Holds Chirp Z-transform configuration.
	DCDump	If True, the DC component will be removed from the signal prior to the transform to the frequency domain.
	Descriptor	This is Descriptor, a member of class TStaticSpectrumAnalyzer.
	Dt	Returns the distance in seconds between two consecutive samples of the signal on which the frequency spectrum is based.
	ExpWindow	The parameter for the exponential windowing function.
	FloatPrecision	Set this property to request computation in 32bit/64bit precision with real/complex numbers.
	FloatPrecisionLock	Set this property to true to lock changes to FloatPrecision property.
	Harmonics	Defines number of harmonics to be used when calculating statistical parameters from the amplitude spectrum.
	HzRes	Returns the frequency resolution in Hz.
	Input	Connector property to obtain a pointer to the TSignal component holding the data to be processed.
	Input	Connector property to obtain a pointer to the TSignal component holding the data to be processed.
	Input	Connector property to obtain a pointer to the TSignal component holding the data to be processed.
	Inputs	Connector property to obtain a pointer to a list of TSignal components holding the data to be processed.
	Integration	Define the integration/differenation of the frequency spectrum.
	IsDouble	Set this property to false, to request computation in 32bit floating point precision, 64bit, if true.
	ItemNumber	Number to label the object when it is an item in the List.
	LdBSpan	This is LdBSpan, a member of class TCustomSpectrumAnalyzer.
	Length	Defines the length of the spectrum.
	Logarithmic	Set it to True, to obtain the logarithm of the spectrum in dB.
	LogBase	Defines the base of the logarithmic spectrum.
	LogMaxAmplt	This is LogMaxAmplt, a member of class TSpectrumAnalyzer.
	LogScale	Defines the scaling of the logarithmic spectrum.
	LogSpan	Defines the span of the logarithmic spectrum in dB.
	LogType	Specify how to apply the logarithm to the spectrum.
	MainlobeWidth	Defines the width of the main lobe. Each frequency component in the frequency spectrum should theoretically be infinitely thin.
	Marks	Stores the frequency, amplitude and phase of selected frequency bins.
	MaxAmplt	Stores the maximum value of the Amplt spectrum found by the MinMaxAmplt method.
	MaxFreqIndex	Holds the index at which the maximum amplitude was found by the MinMaxAmplt method.
	MaxPhase	Stores the maximum value of the Phase spectrum found by the MinMaxPhase method.
	Method	Defines the method to be used for frequency spectrum estimation.
	MinAmplt	Stores the minimum value of the Amplt spectrum found by the MinMaxAmplt method.
	MinPhase	Stores the minimum value of the Phase spectrum found by the MinMaxPhase method.
	OnAfterAverage	Event triggered just after the average has been applied.
	OnAfterComplexSpectrum	Event triggered just after complex spectrum has been computed, but before averaging in the complex domain.
	OnAfterUpdate	The event is triggered after the call to the Update method.
	OnBandsUpdate	If assigned, this event will be called instead of a call to Bands.Update method.
	OnBeforeAverage	Event triggered just before the average is applied.
	OnBeforeSpectrumType	Event triggered just before spectrum type is aplied, but after averaging in the complex domain.
	OnBeforeUpdate	The event is triggered just before the call to the Update method.
	OnDisplayUpdate	The event is triggered after the OnAfterUpdate event. Use this event to update any associated charts or graphs or result tables.
	OnGetInput	If the Input property is not assigned, the component will call OnGetInput.
	OnGetInputSpectrum	Event returning the custom computed frequency spectrum to be used for computation of the input spectrum.
	OnGetOutputSpectrum	Assign the event returning the custom computed frequency spectrum to be used for computation of the output spectrum.
	OnNotifyUpdate	The event is called after a call to InternalUpdate, OnAfterUpdate and OnDisplayUpdate from within the Update method.
	OnParameterUpdate	The event is triggered when ParamUpdate method is called. The ParamUpdate method is usually called by component editors when a value was changed by the user and the editor was "Live".
	OnPeaksUpdate	If assigned, this event will be called instead of a call to Peaks.Update method.
	OnUpdateSpectrum	This event is called from the UpdateSpectrum routine. The event is called after the spectrum data is updated and before the chart is updated.
	Output	Assign "output" of the system being analyzed.
	Peaks	Pointer to the component that manages peak analysis.
	Phase	Stores the phase of the spectrum.
	PhaseMode	This property determines how to handle the phase of the frequency spectrum.
	PhaseRange	Specify the range of the phase spectrum.
	PhaseUnits	Defines the units of phase. (radian, degrees).
	PipeState	Returns the state of the pipe after the last update.
	Report	Holds the parameters needed to generate a spectrum analysis report. Requires that the descriptor property is properly filled up.
	Rotation	Before the frequency analysis, the signal can be circularly rotated by a specified number of samples. Rotation defines the number of samples.
	RunningPhase	Defines how to remove the constant (running) phase from the phase spectrum.
	SamplingFrequency	Defines the sampling frequency of the signal on which the frequency spectrum is based.
	SamplingTime	Defines the length of the signal on which the frequency spectrum is based in seconds.
	ScaleFactor	Frequency spectrum will be scaled by a scale factor.
	SidelobeAtt	Specifies the attenuation of the main sidelobe in dB. This parameter applies only, if you use the Kaiser or Chebyshev window.
	SpectrumScale	The scaling factor applied to the frequency spectrum.
	SpectrumType	Specifies the spectrum type to be computed.
	Stats	Defines the parameters for the averaging and statistical analysis.
	SupportComplexSpectra	This is SupportComplexSpectra, a member of class TSpectrumAnalyzer.
	SuspendNotifyUpdate	Set this property to True, to prevent calling OnNotifyUpdate from the Update Method.
	UnwrapPhase	If True, the phase of the phase spectrum will be "unwrapped".
	UsesInputs	Set it to True to indicate, that valid signals will be connected to the Input or Inputs properties.
	Window	Specifies the window type to be used. Windows decrease spectral leakage, but also decrease spectral resolution.
	ZeroPadding	Defines the level of zero padding of the source signal.

Links

TCrossSpectrumAnalyzer Class, Legend, Public Events, Public Methods, Public Properties

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